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Thermal Coefficient
Inside of the building's temperature can increase or reduce the snow weight. As these types of structures normally cover a wide area and heating or even turning the temperature to something higher than 0 degree needs a lot of energy and not cost effective, therefore thermal coefficient of 1/1 is being used.
As in most cases spatial structures are used outside the cities, such as sport centers and airports, a coefficient of 0.7 seems appropriate.
ANSI regulation, determines the ground snow weight in each area by dividing America into different areas. Bear in mind that we can use the top equation in Iran, if we use 0.7 Pg for the snow weight of flat surfaces in each four areas of the city. Therefore 150 kg/m2 is used for 0.7 Pg (19). therefore:
In these types cylinder roofs, as the gradient is variable, we can divide a arched roof into some slope surfaces and determine Cs coefficient for each part individually.
Modulus of elasticity of light-weight concrete The modulus of elasticity of light-weight concrete is about 50 to 55% of that of normal-weight concrete. The loss of prestresses
Importance of Tendons in post-tensioned members Tendons in post-tensioned members are subjected to different amounts of stresses (among themselves) due to following reasons.
important considerations in case of doors and windows
THE DESIGN PERIOD AVERAGE DAILY DEMAND CALCULATE. THE DESIGN DEMAND FOR THE WATER RETICULATION OR DISTRIBUTION PERIOD.
Extreme fiber stresses at the mid span section of the beam A pre-stressed concrete beam, of cross section 300 mm x 500 mm and 8 m span, is pre-stressed with a parabolic tend
M/i=e/r=f/y
what is the difference between feasibility study and traffic counting
1. What take place when float or slack of an activity is positive Ans: It represents a situation where extra resources are available and the completion of the project is not de
centroid of shaded area
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